Rules and Regulations: Mountain biking is allowed on existing trails and secondary roads on wildlife management areas from March 1 to April 15 and June 1 to September 15, as well as on Sundays throughout the year. Bikes are permitted on major designated trails year round except for the Highlands Trail which passes through Berkshire Valley and Wildcat Ridge WMAs. Riding over any dam, wildlife food area, cultivated fields, lawns, gardens and fire break plow-lines is prohibited. Bikers are also prohibited from establishing any new trails through the destruction of existing vegetation.